Did you follow the installation guide and run admin/check/index.php after finishing the installation?

If so, did you get any error or warnings, especially concerning timezone settings?

As the message says, it is required to set the timezone in your MantisBT / PHP environment.

This can be done in php.ini, or in your MantisBT config_inc.php file ($g_default_timezone).

Also setting other logging levels, such as
$g_log_level = LOG_EMAIL | LOG_EMAIL_RECIPIENT;
do not cause this problem.

This is most likely because no log events of this kind have been triggered on the page you're trying to load.

This is not a bug or feature request for MantisBT (you are asking for help on how to configure the system). I am therefore resolving this issue as "no change required".

Please use the forums, the mantisbt-help mailing list or IRC to get support on customizing and using MantisBT (see http://www.mantisbt.org/support.php)

Sorry but I did set the time zone as requested to something, specifically:
$g_default_timezone = 'Europe/London';

And I did run admin/check/index.php - twice - as I got the error originally about timezones.

I'm not asking for help to configure the system - simply stating a fact that if you add the LOG_ALL option to the config_inc.php file, the system fails. This is all I have in the config_inc.php file.

<?php

$g_hostname               = 'localhost';
$g_db_type                = 'mysqli';
$g_database_name          = 'bugtracker';
$g_db_username            = 'root';
$g_db_password            = 'xxxxxxxxxxx';  

$g_default_timezone = 'Europe/London';

$g_crypto_master_salt = 'kSzCPy4jnkpkOCtxEadN1mSuI7hblb58Z0shqqiNgZg=';

$g_log_level = LOG_ALL;

and this fails. Removing the last line allows me to login in, otherwise I get the error message.

Thanks.

Which version of PHP do you use?

PHP V5.4.27

And this doesn't happen with Mantis Version 1.2.15 on the same machine.

What's the setting of date.timezone in your php.ini?

OK, I see what the problem is and can reproduce it.

core.php initializes the timezone from config_inc.php, but this happens only after including several APIs.

Specifically, the issue is with plugin initializations executing DB queries; db_query() attempts to log the query (LOG_DATABASE in database_api.php:447).

That's fairly easy to fix.

That being said, you really should set the timezone globally at PHP level (i.e. set date.timezone in php.ini)

PR https://github.com/mantisbt/mantisbt/pull/973

I understand what you’re saying and thought it was probably something like the order of initialisation items. Will update php.ini to include the correct one.

Many thanks for taking the time and perseverance to respond!